I am a prime number.
The double of myself is equal to the square of me.

which number am I?

This is a classy optical illusion puzzle. What more you can find except bricks in the image below?

The captain of a ship is telling you an interesting story and then poses a question. He says, “I have travelled the oceans far and wide. One time, two of my sailors were standing on opposite sides of the ship. One was looking west and the other one east. And at the same time, they could see each other clearly. Can you tell me how that was possible?”

I never stop running even when I standstill. If I am formed by joining two identical bodies together, can you guess who I am?

If an earthquake is 1 point higher on the Richter Scale than another earthquake which is actually 10 times stronger, how much stronger would an earthquake be if it was just half a point higher on the Richter scale?

Today is a very icy and cold morning in Newcastle. Mr Shearer, an office bus driver arrived to pick up the employees from the last stop. Shearer suddenly remembers that he needs to pick a newly joined 4miles to the north. Mr Shearer lost his direction compass, a few minutes later Shearer is able to figure that he is moving in the correct direction i.e. north. How did Shearer know that he is moving in the correct direction?

What Does this text mean:

important=important

Solve this riddle by finding the odd one out from the rest.

Decode below rebus
D
N
A
T
S , D

I’m orange, I wear a green hat and I sound like a parrot. What am I?